Wrapping machine



May 31, 1932. w. v LINDSEY 1,860,365

WRAPPING MACHINE Filed Feb. 11. 1929 5 Sheets-Sheet 1 May 31, 1 932. w. LINDSEY 1,860,365

WRAPPING MACHINE- Filed Feb. 11, 1929 5 Sheets-Sheet 2 y 1932- w. LINDSEY 1,860,365

WRAPPING MACHINE Filed Feb. 11, 1929 5 Sheets-Sheet 3 V v Y 7/2501" Mai/212555; 1 /liuge7 v bam/ 12065 w. LINDSEY WRAPPING MA-CHINE Filed Feb. 11, 1929 5 Sheets-Sheet 4 May 31, 1932. w, LINDSEY 1,860,365

WRAPPING MACHINE Filed Feb. 11, 1929 5 Sheets-Sheet 5 Patented May 31,1932;

STAT

winnmn LINDSEY, or CHICAGO, ILLINOIS, ASSIGNQB- T0 WM. com/rennin;

OF CHICAGO; ILLINOIS, ACORPQRATION ,OF.DELAXYARE WRAPPING Application filed february 11;"1'929. senaino; 338,984. i it This invention relatesto iinprovements'in. wrapplng machines, and more partlcularly to machines for wrapping and packaging sticks of chewing i The" particular machine to in disclosed improvement 'pertains,"is one such'as described in the, patents toAI M, Price Nos. 1,109,461 and j 1,185,822, to "which reference] may be had for a more complete disclosure of the construction and operation than 1S here necessary, since the improvement" i has to do with the means for carryingout 'but one step in the Wrapping operation,

namely, that of applying adhesive at the edges of the wrappers in ordemo seal them as theyare wrapped and folded abouttheiin dividual sticks. i v In general, the operation ofa machine to which the present improvement'maybe applied, is to feed the individual sticks from V a vertical magazine or chute into a revolving drum having substantially radial/stick re ceiving slots. The'wrappers which are fed from rolls and cut to lengthy-are fed into the path ofthe sticks as they are'deliverededga wise from the magazine, the 'wra'ppersen Veloping three sides of the sticks as they are carried thereby into the slots. The continued rotation of the drum completes the folding of the wrapper around l the stick, whereupon the folding over of the ends of the wrapper occurs after the delivery of the stick from the drum. Beyond the individnalstick wrapping mechanism is suitable mechanism for stacking several sticks into package form,

andmfinally applying a hand; around each 7 I 1 Figure ,4, but with the reservoir-removed.

package.

It has been practice heretofore to i r the individual sticks hutnotto sealthewrap pers, although it is 'coni1nonf. practice to lenv closefthe. package infla Wrapper of p'arafline paper which is sealed by heat. Thepresentf' invention therefore "contemplates inseam wrapper just in advance of the wrapping;

operation. Snch a wrapping" material is preferably a metal -foil (tin or alu im im) with a'lining of thin paper.

Hencethe' object of the invention'td which the here-" and excessive fiow'zof the flnid adhesive upon si-ve applying thefniariner in which the adhesive is applied I along the endmargins of, the wrappers.

vide a glue p fing nam when an;

deposit athin line or streakof glue "along;

A furtherohject of the invention is to provide a glee applying" mechanism :WlllCh' will will be completely sealed about the enclosed simultaneously or successivelylapply thin V lines of adhesive along one of the'lengthwi'se edgesiand' both the end='fedgesofefach wrapper, I and in such "manner thatfa uni- '5 form feed is maintainedonly dilring'thepp Q eration" of the machine, thus] lavoi'di-nglwaste the wrappers. Y

A preferredemhodimentofithe inventieh i I i is disclosed in the' accompanying drawings,

in which Figure 1 is a generalv view in side elevation of that portion ot a wrapping mechanism in?- inediately associated with "and including the adhesive applying mechanismg' I I Figu'reQ-is an'e-niarged detail view in si 'de elevation 1 showing the adhesive applying mechanism and adjacent Wrappingmecha msin' with portions shown 111' section.

Flgure 3 1s an enlarged'vlew in front; elevation of the wrapping and adhesive'apply 7 ing mechanism of the machine; f t Figure 4 is a perspective view 'of the adhe- 'echanism in-on position of the wrapping operation; i

Figure 5 is a detail-viewin vertical'section s5 L through theglue feeding mechanisnifor the applying rollers -a stakenfon' line of Figure 6 is a detailview in Ye'rticalfsection taken on) line 66 of Figure 1' showing the .rrncchanism for folding of the end: flaps o-fjthe Wrappedsticks; Figure 7 i detail view, in. vertical section I taken online of Figure .l shovv ing the end flaps of a wrapped: stick in the p'roc ess'of ling folded underfto comp1etetlie packages. p p 7 i re 8 s vperspective vlew. show ng Figu Figures 19,110, 11 are perspective views'showing the successive steps in the;

fwrapping and sealing of a single stick.

Briefly describing the stick and wrapper feeding mechanism, Figure 1, avertical magazine 1 supports a pile of fiat sticks S adapted:

to be fedvedgewise in rapid succession from the bottom of the magazinelinto peripheral slots in a rotatingdrum 3 turning on a horij zontal, axis adjacent. the lower end of said *magazine; ,Theseslots3aareshown=as being four in number and'spaced apart at equal intervals about the periphery andgso disposed that with each quarter revolution of the drum' one of the slots is brought .into register with the discharge entrance of the magazine 1.,(A rocking feed armi i' moves 7 inwardly and outwardly toward the drum 3 and across the bottom-ofthe magazine 1, and with each-reciprocation carries a stick w th its wrapper 'intoone of the slots 3a waiting to receive it, as shown in Figure 2. This 7 'feed arm is mounted at the upper end of a vertical jflink'r 5 connected at; its lower end I withone end of a horizontal link 6 pivotally connected at its oppositerend' to afixed point wot-the machine fframe at7; The vertical link c connectedintermediate its ends and The material from which the wrappers are formed, is fed fromza-roll (not shown) sup- 1 ported on a spindle mounted on the machine, 7 abOVe and-to the rear ofthe magazine 1. This material' is preferably a metal .foil with an inner coating of 1 thinpaper, although any suitable wrapping material -maybe used which has moisture-proof :qualities and s'ur faces which will seal readily with thejuse of glue. Near the top of'Figure 1', a 'strand or web W' of the wrapping-material leads from the roll to a pair of feedrolls 10,10 mounted near the topyofthe magazine. These, feed rolls are driven b y'a sprocket wheel 11mounted on the shaft of one'ofthe rolls "and'a chain 1'2 leading-downwardly to asprocket wheel (not shown) but keyedto the driven shaft 9. A second pairiof feedrolls13, 13 is mounted below'thefirst'pair 10, 10 and on themagav zine 1, a short distance above itslower endg Theserolls are also drivenat the same-speed as the upper pair and by means of gearing whichdoes not appear; The web V passes be" betweentopreventlundue .strain; v .Tustjb low' th'e lower set'voffeedlrollsjl'ii, 13 1s a cutter consisting'of a :blade"1twmount-f 1 member 14? and by; the intermittent; opera-f v j a:

"tion'foif the cutter, the- 'advancingstrip is cut or severed in rectangular sheets ,or -:wrap

stick'anddeli-ver it from the drum.v

pers w with serrated front and rear edges, as shown in Figure 9.,

Continuing downwardly on leaving the cutter, the wrappers to come into contact with (Figures1'and2). 7

As each wrapper is fed onto the drum, it exit I tends over one ofthe slots' mand asthe latter reaches a horizontal position opposite the lower end of the magazine 1,'the teed arm 4 advances,forcing a stick S with its wrapperinto the slot, as shown in FigureQ. As the "drum continues to rotate, the partially wrapped stick iscarried' around through approxi- 'mately 180? toap'osition; at the bottom of the drum. iDuring thismovemenhtheleach ing edge of the wrappers w projects from the slot to be wiped or folded across the entrance oi the slot as it encounters a memberlocated in its path, Finally, when the drum has turned through 180?,the stick is ejected from. i

the drum ina'horizont'al rearward direction,

hyvertic'al ejector plates 16, 16 having. ajcir cular motion in a vertical plane an d provided With recesses 16a which pick up the wrapped;

=1The w'r appers'are larger than e the sticks, I

so :that, on beingdelivered. from the drum,

' each 1 stick is enclosed by a "wrapper but i the ends; of the latterproject outwardly: in the form of-flaps as shown. in Figure 11;, iAsfthe wrapped-stick leaves the drum, it-is advanced along track's -17",-:17 '(Figures 6 and 7) above which are folders'18vwhich act in cooperation with circularly moving folding blades 19, 19 f to "fold the endfiapsidownwardly and in- "wardly untilj'theyg arebrought against the a bottomlof-the stick; as shown J in Figurer12.

, -1 From thispciint 'on the wrapped sti'cks 'arc f fed into'anotherdrum -QO whereby bands are I applied. about each, the same being ifed to said drum from a magazine 22-and applied'to the sticks in much the same manner as were the wrappers fed to the drum 3' and applied to the bare sticks, except thatth'e' bands are 7 sticksj" V 1 It'is-notthought necessary to fdescribefur th'er" details of construction a or operation of the machine, inasmfuch as it-is tully described; in U; S. Letters Patent No; 1,491,970 to P rice,

g v v I H r v p jhereinbefore'mentioned I tween'the first pair of rolls' 10, i10'and thence i i i to the-"secondnair withan appreciable slack In 1 the preceding" descriptioniot I the wra i 'pers,thesubject[matter of the present, in-

r p p n v Vention Butwith a clear understandingiof edon av rocker arm 14a; The web' V V passes betweensaid cutting blade and a fixed cutti g.

so 7 aging, 'will ,be readily' followed, and ar ticula'rly'when it is vpointed out that onceithe i itheiwrapplng action, the appl cation, ofythe adhesive to the wrappers and mechanism for" or adhesion takes place as the wrappers are folded around the sticks. 7

: There are two adhesive-applying:devices used, one quite independent of the 01311612: Oneof these devices applies a thinline of .7 Referring to the first mentioned glue-applying device, the same is associated with the feed roller 15 locatedabove the drum 3'. The

' immediate glue-applying members are thin metal discs 23 mounted on the feed roller 15 (Figure 4) having contact with thedrum near each end. As thus located, these discs are spaced a short distance, inwardly from the side edges of the wrapper so that in passing between the? drum and these discs, a thin line or streak of glue 9 is deposited along the edges of each wrapper (Figure 8) and on what is theinner face thereof after the wrap per is folded aroundthe stick. These lines or streaks g are'also shown in Figures 4, 9 and 10. r

' i To supply glue to'the'discs keep them uniformly'saturated, a glue pot or reservoir 24 mounted at zone end of athe feed roller 15, and small pipes;25 25 leadlfrom the reservoir to each of the disc 23, these pipes e-xtending above the. discs and provided with downwardly pening nipples 25a clos-eto the peripheries thereof (Figures).

It will be observed thatfthe glue pot '24is below the level of the supply pipe 25 and hence the glue must beelevated in order to reach the inlet end of the-pipe from whence it may drain by gravity to the applying discs; This method of supplying the adhesive is preferred to afdirect gravity feed from the reservoir, inasmuch as it functions. only while the machine is operating. I Referring more-in detail tothe feed roller 15, the same includes a drivenshaft or spindle 26 rotating at'the same, speed as the drum 3 and in a counterclockwise'di re ctiont Y :Theien d of the shaft 26 at which the glue pot is located, terminates in an integral roller 260, of about twice the diameter of the shaft, and-having boss 26b. Surrounding; the rpllen 26a 7 threaded collar 24datone end designed to screw into the. threaded fiange27dwof thecas is a cylindric casing, 27 integraLwithabearing sleeve 28 inwhich theI end of the shaft 26 is journalled. An opening 29 through :the top of this casing connects the space between the piping and the periphery of the roller with the inlet end of the feed pipe 25;. The cas ing opens endwiseancl has an internally threaded'flange 27a extended endwisebe glue pot 24, the latter havingan integral ing 27. Thelglue pot is preferably cubical I in'shape with a. filling opening 246. in its top wall. At the inner end of the glue pot; is,

m01mtedacylindricblock3'0 cored'outto pro- I vide a cavity 30a'for the boss 26bofthe shaft 26. The block terminates short of "the bottom wall of the glue pot; therehylforming-a relatively small opening or passage 31 through which the glue in the pot can come into contact with'the lower portion of the roller 26m; Thus as the roller revolves .with the shaft, theglue fron the pot is; continuah ly'carried upwardly;fillingthe space below the outlet opening 29, and thence overflowing into the glue supply; line 25, the rollerthus acting to elevate the glue to the level of discharge from'the casing' Theirate of-feed is,

of course, gauged bythe'requirements.ofthe applying disc 28, andso long as the vmachine is in operation, the glue will besupp-lied However, should the machine stop temporarily or shutdown for long periods, the; flow V stopsinstantlyinasmuch as any drainage:

would be back into the glue pot rather than ,to the applying discs; Hence thereqis no necessity for valves,, or reliance on the promptness of, the-operator nshutt ng off or turning on the gluesupply at the proper time in order toavoid an eXcessive'feed in th eone case, or an insufiicient feed in t'hefother. i-; f:. Referring now i to the other glue applying device, the same coin-prises parts aslfollows:

Mounted somewhatforwar'dly and below the dru1n3 is an opentrough'orgluereservoirtvl I (Figures 1, 2 an'd l) having upwardly extending end 'walls or platesw'la providing hearings for the several rotative parts of the devise. Above this reservoir isa glue roller 32 v mounted on ashaft 32 a witli its lower porhere (not shown I) and 3 rotates in a v clockwise direction and about on axis parallel 'with that ofthe drum ;3.':-"Thejspeed ofthe roller is relatively slow, being'just fast-enough V to maintain'a coating ofglue on its surface.

c 'Lo catedbetWeenthe 'glue-"zroll-eriand jthe drum'is a rotative transfer blade to a shaft 34 parallel with the axes of saiddruin 3 and roller 32, and positioned substantially midway between the tw'QJ Asshoiwn in Figures 1 and 3, the shaft 3l"iS driven: from the shaft 32a'by' means of: a pair' offmeshingr gear wheels 35' and 36:keyedl to adjacentends 'iof said shafts 32a and 34, respectively, thejila be being slightly Sfiilil lQI'QSQ that. the trans slightly greater speed 'fer'blade turns at a than the glue roller.

I 1 The transfer blade 33 is a rec taiigulai metal 1 v plateextendin'g lengthwise of the drumi?) f1 and divided into two halves or'sections eX- tending radiallyfrom itsisupportingshaft Q '84,. the length ofthe blade sections; being V equalt'othe distance betweenthe shaft and the periphery of the glue roller. Thus as the blade-rotates, a' quantity'iof glue is wiped from thesurface of: the roller as each'edger ofthe blade comes into contact with it."v It willibe, observed, however, that the edges of the blade clear the drum, but are brought into contact with thev projecting marginal portions ofthefwrappers by means ofc awpresser bar 37 ntounted in" the path of the projecting margins of the wrappers and adjacent the path of the transferfblade (FiguresQ and 4).

This presser bar is mounted at one end .of a rocker. arm 38 which is journalled intermediate its ends on a-stub shaft 39 supported by one of the end plates 31a of the glue reset f voir, and substantially in the plane of the ecj centric 8. The free end of the rocker arm terminates ina trip finger 38a positioned ads vjacentxthe path of the eccentric 8, the latter including the usual type of eccentric sheave .V8aconsistingfof a splitcollar joined together 7 j by bolts 8b passing through projecting bosses 8a (Figure 2). Thus asthe eccentric rotates,

" it trips the rocker. arm aseach'trip member (formed by the bosses- 8c, strikes'the end of thefinger 38a. This tripping action 7 throwsthe presser bar forwardly through a w tha-t'itqolccurs atuth-eizins'tant the wrapper comes; into contact with the face ofrthe bar,

'smalllarc toward andlinto th'elpat-h of the f edges ofthe transfer blade, carrying with it each projecting edge orflap of a wrapper as "it is transporteddownwardly by the drum.

The tripping of the presser'ibar issotimed and likewisepwhen the transfer blade reaches a position opposi.tethe same, and successive f ly presenting its edges to the inner surface of the wrapper. Thus inFigu resZ and 4, the

drum has brought a stick withrits wrapper V opposite the presser bar 37, with .the extended margin of the Wrapper lying on the face 2 of the bar. The transfer blade is rotating in a counter-clockwise direction with one edge about to reach a POSltlOIlOPPOSltG the presser bar. At thisfinstant,the-presserbar'moves forward with; a quick motion bringing the flap'momentarily" into contact with the edge of the bladeand then dropping backto its per just" inwardly" from its outer serrated edge, asj shownat g' in Figure 10, and in Hdottedlines in Figure .4. As each Wrapper is normalfposition; By this contact, a strip or streak of glue isitransferred fromithe edge of thebladeontoithe inner face of the wrappresen'ted, a sin1ilar movementitakes place, I-each'fedge of the blade being replenished with glue by wipingfacros's the face of the roller 32, which. is constantly turning in the glue supplied to thereservoir, i

; Having set forth a preferred embodiment of my invention, .I'claim: r

a )1. In an adhesive applyingdevice the com binationof anadhesive reservoir, afeedroller having its lowerportion lmmersed in the adhesive in said reservoir, a--,r0tative transfer blade having radially disposed edges'adapted jacent the path 'of the edges of said blade,

and trippingrmechanism operative to' shift for wiping contact with the surface of said roller, a presser bar pivotally' mounted ad said presser bar toward the'edges of said blade as the samearerotated into'adhesivef applying position;

2. In an adhesiveapplying device, 'thecombination of arsheet feeding member,an adhesive-applying member adjacent said sheet feeding member and having. a transfer 3 blade adapted to'be presented edgewiseto-i 7 Ward the sheets being advanced bysaid feed- I8 ng'member, a presser bar posltloned 1n the a path of said sheets, and means forintermit-V tently oscillating said bartofpressthe sheets against the edge of the b d Said adhesive; pp y ng lTjl'ember, .r

' 3. In an adhesive-applying, device, the

combination of a sheet feeding member, an

adhesive-applying member. adjacent; said sheet feeding member andfincluding" are tative transfer bladeadapted to be presented edgewise to the path ,ofsuccessive sheets bev ing advanced by said feeding member,an10s-' "cillating presser bar mounted. parallel with said blade and, onthe opposite side of the path of said sheets,"and means for intermit tently oscillating "said presser foot to bring said sheets into contact with the edge of said d j g r 3 4'; In an adhesive-applying. device the combination of a rotative sheet feeding member, anadhesive supply rolleribelow said feeding said sheets, and means for intermittently.

oscillating saidbar to carrysaid sheets into contact withthe: edge, of said blade in its ad-Q hesive transfer position.

75.; In an-adhesiVe-applying device, the combination of a rotative article-holding member from which" thefmarginal *portions 'of the article wrapper extend, an adhesive supply roller, a rotative adhesive-applying'member mounted adjacent said article-holding meme her and having a radial blade adapted to travel to and from-its adhesiveapplyingfpo} sition edgewise thelpath of the extended por}; Q

tions of said wrappers, and an oscillating 'member adapted to pressthe e'xtendedpom tions of thewrapper s in intocontactwith said I blade in its applying position.

.6. In an "adheslve-applyi g device, the I combination t "of a Y rjotative drum f having articlesholdingpocketsfrom which the marginal portions of thearticle wrappers extend, an adhesive supply roller, a rotative transfer 7 member mounted intermediate said drum and said supply roller and having a radial blade adapted to travel from a position in edge- 7 Wise contact with said supply roller to an adhesive-applying position in tlie path of the extended portions of said Wrappers, a presser barlocated in the path of the margins of the Wrappers, and means for oscillating said presser bar to bring said margins of the wrap pers into contact'with said blade in its adhesive-applying position. 7 n i Signed at Chicago, 111., this 30th day'of Jan, 1929. a p

7 WILLIAM LINDSEY. 

